Dy­namic duet

NASA SO­LAR DY­NAM­ICS OB­SER­VA­TORY, 4/5 OC­TO­BER 2017 These ac­tive re­gions on the Sun were cap­tured by NASA’s or­bit­ing So­lar Dy­nam­ics Ob­ser­va­tory in ul­tra­vi­o­let light; a wave­length that can re­veal plasma heated to over 1 mil­lion ºC. The loops seen burst­ing out from the Sun’s sur­face are charged par­ti­cles spin­ning along mag­netic field lines.